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Earthquake breaking news, Light World Earthquakes Magnitude 4-4.9

Light earthquake, 4.35 mag strikes near Guanica in Puerto Rico


Earthquake location 17.8735S, -66.8875WA light earthquake magnitude 4.35 (ml/mb) strikes 11 kilometers (7 miles) from Guanica in Puerto Rico on Saturday. The epicenter of the earthquake was roughly 7 km (4 miles) below the earth’s surface. Exact location of event, longitude -66.8875 West, latitude 17.8735 North, depth = 7 km. A tsunami warning has not been issued (Does not indicate if a tsunami actually did or will exist). The 4.35-magnitude earthquake was detected at 09:05:31 / 9:05 am (local time epicenter). All ids that are associated to the event: pr2020011025. Unique identifier: pr2020011025. Global date and time of event UTC/GMT: 11/01/20 / 2020-01-11 13:05:31 / January 11, 2020 @ 1:05 pm.

Closest city/cities/towns to epicentrum/hypocenter was Ingenio, Patillas, Aguas Buenas (min 5000 pop). Earthquake epicenter was 33 km (20 miles) from Ponce (c. 152 600 pop), 45 km (28 miles) from Mayagüez (c. 78 600 pop), 69 km (43 miles) from Arecibo (c. 49 300 pop), 83 km (51 miles) from Vega Baja (c. 29 300 pop), 74 km (46 miles) from Barceloneta (c. 22 300 pop), 83 km (51 miles) from Guayama (c. 21 600 pop). Close country/countries, Puerto Rico (c. 3 917 000 pop) (That might be effected).

There are an estimated 13,000 light earthquakes in the world each year. In the past 24 hours, there have been sixty-two, in the last 10 days two hundred and fifty-seven, in the past 30 days three hundred and eight and in the last 365 days three hundred and fourty-seven earthquakes of magnitude 3.0 or greater that has occurred nearby. Earthquakes 4.0 to 5.0 are often felt, but only causes minor damage.

Questions or comments?

Were you asleep? Was it difficult to stand and/or walk? Leave a comment or report about shaking, activity and damage at your city, home and country. This information comes from the USGS Earthquake Notification Service. Read more about the earthquake, Seismometer information, Date-Time, Location, Distances, Parameters and details about this quake, recorded: 11 km S of Guanica, Puerto Rico.

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More information

Parameter Value Description
Magnitude 4.35 mb The magnitude for the event.
Longitude -66.8875° West Decimal degrees longitude. Negative values for western longitudes.
Latitude 17.8735° North Decimal degrees latitude. Negative values for southern latitudes.
Depth 7 km Depth of the event in kilometers.
Place 11km S of Guanica, Puerto Rico Textual description of named geographic region near to the event. This may be a city name, or a Flinn-Engdahl Region name.
Time 2020-01-11 13:05:31 Time when the event occurred. UTC/GMT
Updated 2020-01-11 20:25:14 Time when the event was most recently updated. UTC/GMT
Timezone offset -240 Timezone offset from UTC in minutes at the event epicenter.
Felt 294 The total number of felt reports
CDI 7.4 The maximum reported intensity for the event.
MMI The maximum estimated instrumental intensity for the event.
Alert Level The alert level from the PAGER earthquake impact scale. Green, Yellow, Orange or Red.
Review Status reviewed Indicates whether the event has been reviewed by a human.
Tsunami 0 This flag is set to "1" for large events in oceanic regions and "0" otherwise. The existence or value of this flag does not indicate if a tsunami actually did or will exist.
SIG 509 A number describing how significant the event is. Larger numbers indicate a more significant event.
Network pr The ID of a data contributor. Identifies the network considered to be the preferred source of information for this event.
Sources ,pr, A comma-separated list of network contributors.
Number of Stations Used 10 The total number of Number of seismic stations which reported P- and S-arrival times for this earthquake.
Horizontal Distance 0.1837 Horizontal distance from the epicenter to the nearest station (in degrees).
Root Mean Square 0.2 sec The root-mean-square (RMS) travel time residual, in sec, using all weights.
Azimuthal Gap 229 The largest azimuthal gap between azimuthally adjacent stations (in degrees).
Magnitude Type ml The method or algorithm used to calculate the preferred magnitude for the event.
Event Type earthquake Type of seismic event.
Event ID pr2020011025 Id of event.
Event Code 2020011025 An identifying code assigned by, and unique from, the corresponding source for the event.
Event IDS ,pr2020011025, A comma-separated list of event ids that are associated to an event.

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